Red Hat ENTERPRISE LINUX 3 - FOR X86-ITANIUMTM-AMD64 AND INTEL EXTENDED MEMORY 64 TECHNOLO Uživatelský manuál stáhnout pdf (Strana 3)

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Preserving Your Oracle Database 10g Environment

when Upgrading from Red Hat Enterprise Linux 2.1

AS to Red Hat Enterprise Linux 3

OVERVIEW

When you perform a clean install of Red Hat Enterprise Linux 3 (RHEL3) on a

system that has Oracle Database 10g installed on Red Hat Enterprise Linux 2.1

AS (RHAS2.1), you must preserve the Oracle Database 10g environment. This

white paper explains how.

INTRODUCTION

When you upgrade from RHAS2.1 to RHEL3, Red Hat strongly recommends

that you do a full application and data backup, followed by a fresh install of

RHEL3 over the previous version. This procedure is described in Migrating to

Red Hat Enterprise Linux – Benefits and Guidelines at:

http://www.redhat.com/whitepapers/rhel/RHEL3Migration

WPSO.pdf

Oracle directories are usually not located in system directories, so they will not

be overwritten by a clean install. However, the install will overwrite all files in

system directories such as /, /boot, /etc, /var, /home, and /usr. If you have

installed any Oracle directories, such as the Oracle base directories, Oracle

inventory directory, Oracle home, or Cluster Ready Services (CRS) home

directories, in system directories, you must fully back them up before you

perform the upgrade. After the upgrade, restore these directories to their original

locations.

You must preserve certain configuration files to ensure correct Oracle operation

after the RHEL3 install. Some of these files were created or modified when you

did the pre-installation tasks described in Oracle Database Installation Guide:

10g Release 1 (10.1) for UNIX Systems: AIX-Based Systems, hp HP-UX, hp

Tru64 UNIX, Linux, and Solaris Operating System (SPARC) Part No. B10811-

02. Other files were created by Oracle Universal Installer during the Oracle

Database 10g installation. This document describes how to save and restore

those files.

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Red Hat ENTERPRISE LINUX 3 - FOR X86-ITANIUMTM-AMD64 AND INTEL EXTENDED MEMORY 64 TECHNOLO Uživatelský manuál Strana 3